Gnexus, Read my last post ;) it works !by guillaume - Allwinner A10
GOT IT. Tom is the man ! ;-) Thank you so much. QuoteTom hi, can you do a modification of u-boot when booting from sd card with the u-boot and kernel you compiled? https://github.com/hno/uboot-allwinner/blob/sun4i/arch/arm/include/asm/arch-sunxi/clock.h#L141 change #define PLL1_FACTOR_N 21 to #define PLL1_FACTOR_N 16 It works for me now. 100% boot success with any kernel. Thisby guillaume - Allwinner A10
The Compiler Hi, this is strange. I tried the working one on many a2000 and it is working. You sometimes have to try 2-3 times to get a boot. Despite this, the kernel is useless, i can not reproduce it. I'm as stuck as you. Only the stock android kernel works (2.6 and 3.0). I just need 3 thinks working: - Wemac (always working) - SATA (working on the stock kernel) - IPby guillaume - Allwinner A10
Gnexus, a10linux.org is nice. You have done a great job. We should move this thread to it if possible. uboot multi seems awesome. I have tried the kernel 3.0.39+ and u-boot multi. Same effect on the V1.7 board. kernel Oops. Sorry :-( Tom Cubie replied about the problem after i asked him for help about this thread: QuoteTom this is interesting. you can try boot the kernel yoby guillaume - Allwinner A10
For now, i'm unable to build a fully working kernel like the 2.6 android or the 3.0 android on the v1.7 board. I don't know why. Most of the time (99%), the kernel stack explodes with null pointers and Oops. The 1% working (like the one in my previous post) fails on sw_ahci_platform resetting all the time (non-stop reset). I tried many combination between: - gnuabi / gnuabihf:by guillaume - Allwinner A10
Florian, I received today twelve a2000 (yes i'm building a cluster ;-)... All are v1.7 (bad luck). I picked two of them... Exact same bug. So i worked earlier to get a working kernel. This one is working for me on the three v1.7 i tried. Don't ask me why. If you could try it on yours, it will be great. HERE: http://db.tt/rvZ4BINR The tgz containing: working-v1.7-001/ wby guillaume - Allwinner A10
QuoteThe Computer Tried copying the uImage to /sdcard via android and booting it with the stock uboot using fatload. QuoteThe Computer You could also put uImage to /sdcard in android, and then do this in the android uboot: Ok... you have already tried it. thanks for your advise via uboot. need to study a bit of uboot ;-) Last time, i nearly crashed the board with my keyboard but i wilby guillaume - Allwinner A10
Florian, In my second post in the thread, you will see my ttl boot log with test run between Android ICS and my kernel. I'm getting the same error as yours like this one: -- <3>huh, entered softirq 1 TIMER c006795c preempt_count 00000103, exited with 00000000? <1>Unable to handle kernel paging request at virtual address f10c00a0 <1>pgd = c0004000by guillaume - Allwinner A10
Yes it's the nand ~Memory~ (Micron) ;-) It was the first difference i've noticed. I'm not sure v1.7 is working for other people. I have 2 other a2000 v1.3 working nicely... but not the v1.7. On the v1.7: - Ram: hynix chips ending with 218A - Nand: micron - 29F32G08CBACA On the two other A2000 v1.3: - Ram: hynix chips ending with 143AK - Nand: hynix chip H27UBG8T2ATby guillaume - Allwinner A10
Same here :-( except i succeed in unknown circumstance to make it boot my own kernel. http://forum.doozan.com/read.php?6,9414,9462#msg-9462 The v1.7 sticker bug. I suspect a stack corruption (early load process) somewhere in the kernel branch linux-allwinner-3.0-v2 but i was unable to find it. I'm a poor c user-land developer and sadly not a kernel dev.by guillaume - Allwinner A10
Yes the platform seems great, Yes the marketing is nice, Yes i would like to try one for that price... but happiness never comes alone. it's the same sales strategy as the raspberry pi... They are taking orders (and pre-orders for the most civilized companies) and will only go to production with a huge number of orders. (i'm waiting for a Pi since 3 months). The real price of a Pi Bby guillaume - Allwinner A10
Hello, Sorry for the lack of info, i was blind. I have a usb-ttl now... and a third A2000 to test. I think the first A2000 is broken. The two others work perfectly with my custom kernel (nand partitionning and without sdcard now!). Here is the full minicom log of the "broken" one (sticker v1.7): http://db.tt/xile3Mlc Line 1: homlet4.0 reset Line 684: android first boot: oby guillaume - Allwinner A10
Hello, I received on Friday one new Mele A2000 (new version V1.6 on the PCB reference sticker and another sticker alone "V1.7" near the A10). The only difference seems to be the memory chip: Micron. The script.fex need to be modified to work, as the one decompiled from the nanda (just removing some info): dram_baseaddr = 0x40000000 dram_clk = 360 dram_type = 3 dram_rank_nby guillaume - Allwinner A10